Novotny et al. The authors of the paper \'Why are there so many species of herbivorous insects intropial rainforests\" set out to the hypothesis and eventually Herbivore species coexistence in more diverse communities could reflect increased plant diversity; accepted it Herbivore species coexistence in more diverse communities could reflect increased plant diversity; rejected it Herbivore species coexistence in more diverse communities could reflect narrow host specificity: accepted it Herbivore species coexistence in more diverse communities could reflect narrow host specificity; rejected it Solution herbivore species coexistence in more diverse communities could reflect narrow host specificity , and accepted it. This occurs due to the availability of more divers food source due to diversity of plants in tropical forests..